Cars and planes get much more attention than trains when it comes to emissions. That makes sense when, in the UK, transport accounts for 26% of all carbon emissions but only 1% of this comes from trains. Also, trains are already relatively emission-low: they release 0.046kg of CO₂/km/passenger while a diesel car is more than double that. Marcus Mayers and David Bamford at Manchester Metropolitan University explain that the crucial difference is … [Read more...]